Fair Value (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (USD $) In Thousands, unless otherwise specified	Jul. 31, 2013		Jan. 31, 2013
Fair Value (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Cash equivalents	$ 2		$ 2
Money Market Mutual Fund	120	[1]	300	[1]
Investment in Cooperative	262	[1]	252	[1]
Total Assets	384		554
Interest rate swap derivative liability	1,933		2,789
Fair Value, Inputs, Level 1 [Member]
Fair Value (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Cash equivalents	2		2
Money Market Mutual Fund	120	[1]	300	[1]
Total Assets	122		302
Fair Value, Inputs, Level 2 [Member]
Fair Value (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Interest rate swap derivative liability	1,933		2,789
Fair Value, Inputs, Level 3 [Member]
Fair Value (Details) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Investment in Cooperative	262	[1]	252	[1]
Total Assets	$ 262		$ 252

[1] The money market mutual fund and the investment in cooperative are included in "Other assets" on the accompanying Consolidated Condensed Balance Sheets.